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Table 1 The weighted basic characteristics of the study population before PSM

From: Association between polyunsaturated fatty acid intake and the prevalence of erectile dysfunction: A cross-sectional analysis of the NHANES 2001–2004

Characteristics

Total

Erectile dysfunction

P-value

No

Yes

Total participants

3730

1962

1768

 

Age (%)

   

< 0.0001

< 40 years

39.76

51.65

19.72

 

≥ 40 years

60.24

48.35

80.28

 

BMI (kg/m2), Mean ± SD

28.08 ± 5.44

27.69 ± 5.13

28.74 ± 5.87

< 0.0001

TPFA (g), Mean ± SD

20.257 ± 12.840

20.902 ± 12.594

19.170 ± 13.173

< 0.0001

ω-3 PUFA (g), Mean ± SD

1.953 ± 1.434

2.013 ± 1.458

1.851 ± 1.387

0.0008

ALA (g), Mean ± SD

1.776 ± 1.253

1.827 ± 1.249

1.691 ± 1.255

0.0014

SDA (g), Mean ± SD

0.009 ± 0.038

0.009 ± 0.040

0.008 ± 0.033

0.4173

EPA (g), Mean ± SD

0.051 ± 0.177

0.054 ± 0.190

0.045 ± 0.151

0.1276

DPA (g), Mean ± SD

0.021 ± 0.063

0.023 ± 0.070

0.019 ± 0.047

0.1317

DHA (g), Mean ± SD

0.095 ± 0.267

0.100 ± 0.292

0.087 ± 0.218

0.1407

ω-6 PUFA (g), Mean ± SD

17.953 ± 11.512

18.528 ± 11.211

16.981 ± 11.939

< 0.0001

LA (g), Mean ± SD

17.784 ± 11.460

18.350 ± 11.150

16.829 ± 11.906

< 0.0001

AA (g), Mean ± SD

0.169 ± 0.150

0.178 ± 0.161

0.153 ± 0.126

< 0.0001

Race (%)

   

0.9751

Mexican American

7.77

7.69

7.91

 

Non-Hispanic Black

9.17

9.04

9.38

 

Non-Hispanic White

74.80

74.94

74.57

 

Others

8.26

8.33

8.14

 

Education (%)

   

< 0.0001

Less than high school

16.49

13.11

22.18

 

High school

27.14

26.66

27.95

 

More than high school

56.37

60.23

49.88

 

Hypertension (%)

   

< 0.0001

No

71.46

80.03

57.01

 

Yes

28.54

19.97

42.99

 

Diabetes (%)

   

< 0.0001

No

91.94

96.09

84.93

 

Yes

8.06

3.91

15.07

 

Cardiovascular disease (%)

  

< 0.0001

No

88.68

92.66

81.96

 

Yes

11.32

7.34

18.04

 

Vigorous activity (%)

  

< 0.0001

No

60.30

52.11

74.10

 

Yes

39.70

47.89

25.90

 

Moderate activity (%)

  

< 0.0001

No

43.85

40.18

50.04

 

Yes

56.15

59.82

49.96

 

Smoking status (%)

   

< 0.0001

Non smoker

42.71

48.19

33.47

 

Previous smoker

29.09

23.72

38.15

 

Current smoker

28.20

28.08

28.38

 
  1. Abbreviations: PUFA, polyunsaturated fatty acid; TPFA, total polyunsaturated fatty acids; BMI, body mass index; AA, arachidonic acid; ALA, α-linolenic acid; DHA, docosahexaenoic acid; LA, linoleic acid; EPA, eicosapentaenoic acid; DPA, docosapentaenoic acid; SDA, octadecanotetraenoic acid; PSM, propensity score matching